Novel theodolite for surveying and mapping real estate
By designing a new type of theodolite for real estate surveying, and adopting a horizontal frame flipping and chin support adjustment, the problem of needing to lie down for surveying in the existing technology has been solved, enabling standing observation of horizontality and comfortable surveying, thus improving efficiency and comfort.
Patent Information
- Application Number
- CN202520561815.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The existing theodolites require the user to lie prone to determine the levelness during the surveying process, which affects surveying efficiency and causes inconvenience as the chin is suspended in the air.
A novel theodolite for real estate surveying has been designed, comprising a tripod, base, control panel, eyepiece, main frame, objective lens, horizontal frame, and chin rest. By flipping the horizontal frame and adjusting the height of the chin rest, a standing observation level and a comfortable surveying posture can be achieved.
It enables rapid levelness assessment while standing, improving surveying efficiency and reducing physical discomfort.
Smart Images

Figure CN223768537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a novel theodolite for real estate surveying, belonging to the field of theodolites. Background Technology
[0002] A theodolite is a measuring instrument designed based on the principle of angle measurement to measure horizontal and vertical angles. Depending on the scale graduations and reading methods, it is classified into vernier theodolites, optical theodolites, and electronic theodolites. Due to the height limitations of the theodolite, determining levelness often requires lying prone during surveying, a cumbersome process; furthermore, the chin is suspended in the air during the measurement, affecting surveying efficiency. Utility Model Content
[0003] The purpose of this utility model is to provide a new type of theodolite for real estate surveying to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A novel theodolite for real estate surveying includes a tripod, a base, a control panel, an eyepiece, a main frame, an objective lens, a horizontal frame, and a chin support. The main frame is positioned and installed on the base at the top of the tripod. The control panel is installed at the front and rear ends of the lower end of the main frame. The eyepiece and objective lens are positioned and installed at the center of the main frame via a rotating shaft. The horizontal frame is positioned and installed on the outer side of the main frame. The chin support is positioned and installed directly below the eyepiece.
[0005] Preferably, the jaw support consists of a chassis, a height adjustment turntable, an arc-shaped bracket, and an inner sponge cushioning pad. The chassis is positioned and installed with the height adjustment turntable via a threaded rod. The arc-shaped bracket is positioned and installed on the height adjustment turntable via an independent rotating shaft. The inner sponge cushioning pad is embedded and glued into the inner groove of the arc-shaped bracket.
[0006] Preferably, the horizontal frame consists of a telescopic link, a main shaft, a limiting pin, and a horizontal ball. The main shaft is positioned and installed at the bottom of the telescopic link, the limiting pin is inserted into the through hole of the telescopic link frame, and the horizontal ball is horizontally installed at the top of the telescopic link.
[0007] Preferably, the main frame body at the synchronous through hole position of the limiting pin is machined with an inner groove.
[0008] Compared with the prior art, the beneficial effects of this utility model are:
[0009] The horizontal frame consists of a telescopic link, a main rotating shaft, a limit pin, and a level bead. After the triangular bracket and the main frame are placed in the designated position, the horizontal frame is rotated 180° by the main rotating shaft, and the telescopic link is pulled to raise the height. At this time, the height of the level bead is not much different from the eye level of a standing person, and the level bead can be observed by the support rod to quickly determine the levelness.
[0010] The jaw support consists of a base, a height adjustment dial, an arc-shaped bracket, and an inner sponge cushion. The height of the jaw support can be adjusted via the height adjustment dial, and the arc-shaped bracket, together with the inner sponge cushion, supports the jaw. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the theodolite used for real estate surveying according to this utility model;
[0012] Figure 2 This is a schematic diagram of the installation structure of the theodolite used for real estate surveying according to this utility model;
[0013] Figure 3 This is a schematic diagram of the mandibular support structure of this utility model;
[0014] Figure 4 This is a schematic diagram of the structure of the horizontal frame of this utility model.
[0015] In the diagram: 1. Triangular support, 2. Base, 3. Control panel, 4. Eyepiece, 5. Main frame, 6. Objective lens, 7. Horizontal support, 8. Jaw support, 9. Chassis, 10. Height adjustment dial, 11. Arc-shaped bracket, 12. Inner sponge cushion, 13. Telescopic linkage, 14. Main shaft, 15. Limit pin, 16. Horizontal ball. Detailed Implementation
[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0017] like Figures 1-4 As shown, a novel theodolite for real estate surveying includes a tripod 1, a base 2, a control panel 3, an eyepiece 4, a main frame 5, an objective lens 6, a horizontal frame 7, and a chin rest 8. The main frame 5 is positioned and installed on the base 2 at the top of the tripod 1. The control panel 3 is installed at the front and rear ends of the lower part of the main frame 5. The eyepiece 4 and the objective lens 6 are positioned and installed at the center of the main frame 5 via a rotating shaft. The horizontal frame 7 is positioned and installed on the outer side of the main frame 5. The chin rest 8 is positioned and installed directly below the eyepiece 4.
[0018] The jaw support 8 consists of a chassis 9, a height adjustment turntable 10, an arc-shaped bracket 11, and an inner sponge cushioning pad 12. The chassis 9 is positioned and installed with the height adjustment turntable 10 via a threaded rod. The arc-shaped bracket 11 is positioned and installed on the height adjustment turntable 10 via an independent rotating shaft. The inner sponge cushioning pad 12 is embedded and glued into the inner groove of the arc-shaped bracket 11. The height of the jaw support 8 can be adjusted by the height adjustment turntable 10. The arc-shaped bracket 11, together with the inner sponge cushioning pad 12, supports the jaw.
[0019] The horizontal frame 7 consists of a telescopic link 13, a main rotating shaft 14, a limiting pin 15, and a level bead 16. The main rotating shaft 14 is positioned at the bottom of the telescopic link 13, and the limiting pin 15 is inserted into the through hole of the telescopic link 13. The level bead 16 is horizontally installed at the top of the telescopic link 13. The horizontal frame 7 is rotated 180° by the main rotating shaft 14, and the telescopic link 13 is pulled to raise the height. At this time, the height of the level bead 16 is not much different from the eye level of a standing person, so the level can be quickly judged by observing the level bead on the support, without having to bend over to observe the level bead.
[0020] The main frame 5, with an inner groove formed at the synchronous through hole position of the limiting pin 15, rotates the horizontal frame 7 180° by the main rotating shaft 14, and the limiting pin 15 vertically positions the telescopic connecting rod 13.
[0021] Specific usage: A new type of theodolite for real estate surveying. This device is designed to assist theodolite surveying. After the tripod and main frame are placed in the designated position, the horizontal frame is rotated 180° by the main shaft. The height is raised by pulling the telescopic connecting rod. At this time, the height of the level bead is not much different from the height of the human standing line of sight. The support rod can be used to observe the level bead and quickly judge the levelness. The height of the chin support can be adjusted by the height adjustment dial. The arc-shaped support, together with the inner sponge cushion, supports the chin.
[0022] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.
Claims
1. A new type of theodolite for real estate surveying, characterized in that, The utility model relates to a kind of stereoscopic microscope, including triangle support (1), pedestal (2), control board (3), eyepiece (4), main frame (5), objective (6), horizontal frame (7), lower jaw bracket (8), pedestal (2) positioning installation is positioned in the top position of triangle support (1) main frame (5), the front and rear end of the lower end position of main frame (5) is set to install control board (3), eyepiece (4) and objective (6) are positioned and installed in the center position of main frame (5) frame body by pivot, main frame (5) frame body outer side positioning installation has horizontal frame (7), lower jaw bracket (8) is positioned and installed in the position directly below eyepiece (4).
2. A new type of real estate surveying theodolite according to claim 1, characterized in that: The lower jaw bracket (8) is composed of a base plate (9), a height adjustment turntable (10), an arc-shaped bracket (11), and an inner sponge cushion (12). The base plate (9) is positioned and installed with the height adjustment turntable (10) through a threaded rod. The height adjustment turntable (10) is positioned and installed with the arc-shaped bracket (11) through an independent pivot. The arc-shaped bracket (11) is inlaidly and adhesively installed with the inner sponge cushion (12) in the inner groove.
3. A new type of real estate surveying theodolite according to claim 1, characterized in that: The horizontal frame (7) is composed of an extension link (13), a main pivot (14), a limiting pin (15), and a horizontal bead (16). The main pivot (14) is positioned and installed at the bottom of the extension link (13). The limiting pin (15) is insertedly installed in the through hole of the extension link (13). The horizontal bead (16) is horizontally and transversely installed at the top of the extension link (13).
4. The new type of real estate surveying theodolite according to claim 1, characterized in that: The main frame (5) is formed with an inner groove at the synchronous through hole position of the limiting pin (15).